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ycow [4]
2 years ago
9

Only answer if you know the answer

Biology
1 answer:
Volgvan2 years ago
6 0

Answer:

B. A helicase enzyme unwinds the DNA molecule, then corresponding nucleotides are added to the separated original strand forming two separate semiconservative molecules

Explanation:

DNA Replication is an important phenomenon as far as cell division is concerned. It is the process whereby a DNA molecule doubles its content or forms two DNA molecules from one.

In the semi-conservative model of DNA replication, an enzyme called DNA helicase unwinds the double stranded DNA molecule into two single strands. The single strands are then used as template for DNA polymerase to synthesize another molecule of DNA. Hence, two separate DNA molecules comprising of one old strand and one new strand.

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Andre45 [30]

Answer:

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8 0
3 years ago
Which of the following serves as an advantage to using numerical taxonomy?
spayn [35]

Visual traits, like cell shape and size, are the most important criteria for determining similarity between species. thus option C is correct.

<h3>What is the significance of numerical taxonomy?</h3>

In biological systematics, numerical taxonomy is a categorization scheme that deals with the numerical grouping of taxonomic units according to their character states. Instead of employing a subjective assessment of their qualities, it seeks to construct a taxonomy using numerical procedures like cluster analysis.

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Learn more about numerical taxonomy here:

brainly.com/question/9403476

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7 0
1 year ago
How does an exotic species affect the food web of an ecosystem?
statuscvo [17]

Answer:

by destroying or replacing native food sources.

Explanation:

hope this helps

8 0
2 years ago
Why are there so many changes to the bay's plant and animal population
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There are so many changes due to adaptation and climate change
5 0
3 years ago
Read 2 more answers
During a laboratory experiment, you discover that an enzyme-catalyzed reaction has a ∆G of -20 kcal/mol. If you double the amoun
Anna71 [15]

The correct answer is: B) -20 kcal/mol

Enzymes are catalysts of chemical reactions, they speed up the reaction by lowering the activation energy, but don't affect the ∆G (change of Gibbs free energy). The changes in free energy occurs due to change in concentrations of reactants and products and don't have anything to do with the presence or absence of an enzyme.

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